Mark's age 15 years ago can be expressed as:
1 answer:
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The equation of parabola is 
.
The canonical equation of parabola is
and this parabola has branches that go in positive direction of x-axis.
Since in your equation x is changed to y and y to x, then the <span>branches of the parabola go in positive y-axis direction, the vertex is placed at the origin.
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The canonical equation of parabola is
Since in your equation x is changed to y and y to x, then the <span>branches of the parabola go in positive y-axis direction, the vertex is placed at the origin.
</span>
<span />